[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       Spermatophyta Britton & Brown 1896 [Crane & Kenrick 1997], nom. cl. inval. - seed plants see Clade Spermatophyta Britton & Brown 1896 [Cantino, Doyle & Donoghue 2020]
         Class Magnoliopsida Brongn. (1843)
           "Eudicots" see Clade Eudicotyledoneae Donoghue, Doyle & Cantino 2007 [Donoghue, Doyle & Cantino 2020]
             "Core Eudicots" see Clade Gunneridae Soltis, Soltis & Judd 2007 [Soltis, Soltis & Judd 2020]
               Asteridae Takht. (1967) see Superorder Asteranae Takht. (1967)
                 Lamiids see Clade Lamiidae Takhtajan 1987 [Olmstead, Judd & Cantino 2020]
                   Order Gentianales Juss. ex Bercht. & J.Presl (1820)
                     Family Rubiaceae Juss. (1789), nom. cons. - coffee family
                       Subfamily Antirheoideae see Subfamily Cinchonoideae
                         1 Tribe Retiniphylleae
                         2 Tribe Vanguerieae
                         3 Tribe Guettardeae DC. (1807)
                         4 Tribe Chiococceae Benth. & Hook.f. (1873)
                         5 Tribe Alberteae Sond. (1865)
                         6 Tribe Cephalantheae Bartl. (1830)
                         7 Tribe Craterispermeae Verdc. (1958)
                         8 Tribe Knoxieae Benth. & Hook.f. (1873)